Hi Shannon,
I have some favorite tips for beating the heat at Walt Disney World. My family likes to get to our theme park of choice early on any given day, taking in attractions throughout the morning, and heading inside for an air-conditioned lunch. By this time it is early afternoon and the peak heat of the day is coming, so we tend to head back to our resort for a nap, which might be good for your toddler, or a dip in the pool, which might be good for your older child. Then, later in the day, if we want to head back into a theme park we can as the sun is setting. Another favorite tip of mine is to take a break in a theme park at the
Baby Care Centers. These air conditioned spaces offer a place to feed and change your little one, and just take a break away from the heat. Finally, stay hydrated! My family likes to carry water bottles in our backpacks when we head into the theme parks, and you can also ask for a complimentary cup of ice water at any quick-service restaurant.
As to splitting up for attractions, I think that you will be pleasantly surprised with how many attractions at Walt Disney World do not have a height requirement and that your party can all enjoy together. Of course, there are some
attractions with height requirements. The link I provided includes a chart of height requirements for Magic Kingdom, as well as links for similar charts for Epcot, Disney's Hollywood Studios, and Disney's Animal Kingdom. Be sure to check out
Rider Switch Service as a way for some adult guests to enjoy attractions while one adult guest waits with your little one.
Please do let us know if you have any further questions, Shannon!